Antonina Miliukova
Antonina Ivanovna Miliukova (Russian: Антонина Ивановна Милюкова; 5 July 1848 – 1 March 1917) was the wife, and after 1893, the widow, of Russian composer Pyotr Ilyich Tchaikovsky.
After marriage she was known as Antonina Tchaikovskaya.
Read more about Antonina Miliukova: Early Years, Later Years, Her Memoirs